4 1/2”W x 5 1/2”L x 7”D battery for GS “deep” tool tray?

Discussion in 'Airheads' started by hotwheels22, Aug 8, 2018.

  1. UnclePete

    UnclePete Been here awhile

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    I have that tool tray in my '87 R80 ( mono ) , also had one on my '81 R80G/S years ago .
    R 80 required less cranking amps than a R100 , so a smaller battery , and therefore a smaller battery tray was acceptable . The smaller battery tray is mounted transverse and the battery is less than 3" thick . Your R100GS has the battery mounted longitudinally , so the tool tray probably will not work with that ; I felt under mine with tool tray installed and the bottom of tool tray extended below battery tray slightly . Also there is a tab on mine that engages a tab on the fender .
    P8100002.JPG
    #21
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  2. hotwheels22

    hotwheels22 motorradRP

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    thanks man. i saw that tab on the tool tray. i think this thing was advertise as a GS tray so i assumed it was plug and play.
    i guess i’ll check the fiche and maybe try to find a mono battery holder to fiddle with. can’t be much more than 20 US.
    why has the term “mono” totally escaped me. we’re talking R80’s of all years (without any R or ST designation)?
    also, the frames are all the same aren’t they? so it is just basically a question of the /length/ or “width” of the slosh battery for the GS? i mean - they must have dropped the old size tray and the deep tool tray and added a larger battery holder in the GS but the space either takes up (and the fixings) must be pretty similar...?
    #22
  3. UnclePete

    UnclePete Been here awhile

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    The frames are not the same , only similar ; battery tray mounts are not in the same places .
    If you want to use a smaller battery maybe use a small box full of tools to take up the additional space .
    #23
  4. Screaming Chicken

    Screaming Chicken Long timer

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    I bought an aftermarket stainless one. SWT sell them, Wunderlich sell them, boxersupplies sell them, that’s plug and play for the GS. Easiest way.
    #24
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  5. bleaknessengine

    bleaknessengine Been here awhile

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    i also use the swt battery tray and i use the toolbox you’re looking to use. it doesn’t have the relief for the shock bolt, but a drill can help out.
    #25
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  6. hotwheels22

    hotwheels22 motorradRP

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    ok thanks. are we talking this part? and it’s plug and play and fits the roughly 7” (178mm) “long” (but with the new part it will fit horizontally...) pc 680?

    https://www.swt-sports.de/de/batteriekasten-edelstahl-bmw-r-80-100-paralever

    Attached Files:

    #26
  7. hotwheels22

    hotwheels22 motorradRP

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    google translate is a little rough but this tray can be mounted left to right so the battery fits “widthwise” i guess...?

    Attached Files:

    #27
  8. bleaknessengine

    bleaknessengine Been here awhile

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    #28
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  9. Screaming Chicken

    Screaming Chicken Long timer

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    [​IMG]
    #29
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  10. Kiwiabbo

    Kiwiabbo Been here awhile

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    Just for your understanding, the first lot of BMW’s were all twin shocked up till around 84, then mono shock bikes came out so a few changes to the frame happened along with other changes, this was up till 89 when they introduced the Paralever to the mix which changed a few bits around on the frame to accomodate the new suspension. All the frames are basically the same in construction just changes in sub frames, strengthening, and suspension mounting points. A lot of it is mix and match but have to do a little fab work here and there to make some bits work. Not all accessories will fit all frames so you need to confirm what some bits were actually from. The likes of your tool tray, if someone left out the / from the description then that changes a lot of stuff. Have fun
    #30
  11. hotwheels22

    hotwheels22 motorradRP

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    sweet. i’m in. just so i’m sure and can put a stake in this - that’s the swt part under there?
    #31
  12. hotwheels22

    hotwheels22 motorradRP

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    thanks kwiabbo. i see. so basically we are calling the “monoshock” the 85 - whatever year R80 series with the old school rear drive etc and the GS/R/GSPD’s we call “paralever” (even though they are basically monoshock)? i got crosswise elsewhere thinking the paralever is a monoshock but i scrambled things to the point where i got confused...
    but basically the single shock on the paralever is also configured differently...
    #32
  13. Kiwiabbo

    Kiwiabbo Been here awhile

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    Two very different suspension systems. So mono is just that, a single shock acting on the swing arm. The paralever is essentially as it says, it sets up a paralagorgram suspension so helps eliminate the back wheel trying to turn around the swing arm pivot point. Much smoother action and better ride quality. I’m sure some will disagree. They each have good and bad points. The paralever is not as strong and does require more maintainance. Price to pay for a nice ride.
    #33
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  14. Kiwiabbo

    Kiwiabbo Been here awhile

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    Basically elimininates the squat or rise on acceleration or deceleration. Was the next advancement from a single shock to get a better ride.
    #34
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  15. hotwheels22

    hotwheels22 motorradRP

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    Attached Files:

    #35
  16. hotwheels22

    hotwheels22 motorradRP

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    thanks. i don’t think i quite understood the shock differences in addition to the swingarm differences. then the “monolever” threw me for some dumb reason. technically we can also call the earlier bike a monolever i suppose.
    #36
  17. Kiwiabbo

    Kiwiabbo Been here awhile

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    Only the mono levers are mono levers. The paralever’s are paralever’s and are different. Try to understand the difference. It will help you out.
    #37
  18. Screaming Chicken

    Screaming Chicken Long timer

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    I think mine came from boxersupplies but not sure. They won’t be much different anyway, if they’re not actually the exact same part with different branding. SWT should be fine.
    #38
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  19. hotwheels22

    hotwheels22 motorradRP

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    ok. got it. but “stash” larry on another forum was asking me if i had a “monoshock”. and we got a tad crosswise when i said yes...
    #39
  20. Kiwiabbo

    Kiwiabbo Been here awhile

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    Yes you would have. They are different bikes. Best to state the year when people ask what model. A GS and a G/S are two different bikes.
    #40
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